1, determine the scope of application, the current video camera is divided into analog and digital signals by two types, if it is a network camera (IP camera) you can choose outdoor Poe switch;
2, to determine their own camera indicators. Generally speaking, the main camera is two indicators: first, the voltage is generally 12V, two is the power is generally 12-15W. The camera is divided into two categories according to the interface, a class is the BNC interface, a class of RJ45 interface. Check if there is an electrical connection to the PoE, if there is no need to use the PoE splitter.
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